For the A7V record, I will add this info found from various sources. I cannot guarantee its accuracy though.
Chuck
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From Polish armour expert Witold J. Lawrynowicz:
501 "Gretchen" scrapped by the Allies in 1919.
502 Scrapped by Germans in October 1918.
503 Scrapped by Germans in October 1918.
504 "Schnuck" lost at Fremicourt 08/31/1918.
505 “Baden I” scrapped by the Allies in 1919.
506 “Mephisto” lost at Villers-Bretonneux 04/24/1918, recovered by Australians, now in Queensland Museum in Brisbane, Australia.
507 "Cyklop" scraped by the Allies in 1919.
525 "Siegfried" scrapped by the Allies in 1919.
526 Scrapped by Germans in 06/1/1918.
527 "Lotti" lost at Pompelle Fort 06/01/1918.
528 "Hagen" lost at Fremicourt 08/31/1918.
529 "Nixe II" lost at Remis 05/31/1918, recovered by Americans and scraped at Aberdeen Proving Grounds Museum in 1942.
540 "Heiland" scraped by the Allies in 1919.
541 Scrapped by the Allies in 1919.
542 "Elfriede" lost at Villers-Bretonneux 04/24/1918
543 "Hagen", "Adalbert", "Konig Wilhelm" scraped by the Allies in 1919.
560 "Alter Fritz" lost at Iwuy 10/11/1918.
561 "Nixe" scrapped by Germans 04/24/1918.
562 "Herkules" scrapped by Germans after 08/31/1918.
563 "Wotan" scrapped by the Allies in 1919.
564 Scrapped by the Allies in 1919.
From Mad Zeppelin:
501 - in service until armistice
502 - uncertain, may have been no tank at all
503 - in service until armistice
504 - abandoned August 31st, 1918, scrapped in London 1920, gun at IWM
505 - in service until armistice*
506 - abandoned April 24th, 1918, on display in Brisbane/Australia
507 - in service until armistice*
525 - in service until armistice
526 - damaged June 1st, 1918, not used in combat again
527 - hit by artillery June 1st, 1918, scrapped by French in 1920/21
528 - abandoned August 31st, 1918, allegedly last on display in Edinburgh/Scotland
529 - hit by artillery May 31st, 1918, scrapped at APG, Maryland, in 1942
540 - left behind in October 1918, British capture, scrapped in France 1918/19
541 - in service until armistice
542 - toppled April 24th, 1918, captured and tested, scrapped by French in 1919
543 - in service until armistice
560 - blown up October 11th, 1918
561 - blown up April 24/25th, 1918
562 - left behind in October 1918, British capture
563 - in service until armistice
564 - in service until armistice
* = one of these two may have been sent to Berlin for repairs in October 1918 - and became "Imperator" in Kokampf's service.
"in service until armistice" = candidate for either being sabotaged by the leaving Germans or for scrapping ordered by French occupation forces
Using names may be misleading, most tanks carried names only temporarily.
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For all I know, Abt.1 used names for a short period only (mid-April to mid-May 1918). When 527 was lost on June 1st, the former name "Lotti", had already been overpainted - but became visible again while the tank lay east of Reims until 1920/21. The only Abteilung that used names throughout was 2, thus:
504 "Schnuck"
525 "Siegfried"
528 "Hagen"
529 "Nixe II"
542 "Elfriede”
543 "Bulle"
561 "Nixe"
562 "Herkules"
563 "Wotan"
The numbers were chassis numbers. which somehow complicates things because what we can see is the armoured hull, not the chassis. But change of chassis did - as far as we know - not happen frequently. Often, the chassis numbers were also painted on the hull. In most cases on the inside of the doors, but Abt.1 also carried them in large form on the armour plate in early April 1918.
Abt. 1 apparently only carried names for a short period (April 1918 - at Villers-Bretonneux). On 21st March 1918 they did not use names. Abt. 1 used skull and crossbones on the front armour below the gun. On 21st March in provisional form, painted by the crew, later in professional layout painted by BAKP 20.
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The Villers-Bretonneux tank action was in 2 parts:
A7V #561 "Nixe" vs 3 Mk IVs
A7V #525 "Siegfried" vs 7 Whippets (4 Whippets destroyed by the A7V and 7.7cm guns)
The Niergnies/Seranvillers action was carried out by captured Mark IV tanks.
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Tank Commanders – A7V and Beutepanzers
March 21st, 1918:
501 - Hptm Walter Greiff initially, later Leutnant Wolfgang Bartens
505 - Lt Voss
506 - Oberleutnant Skopnik
507 - Lt Bartens, after defect, Bartens to 501
101 - Lt von Richter
102 - Lt Lippold
103 - Lt Krug
104 - Lt Schünemann
105 - Lt Böhme
April 24th, 1918:
501 - Lt Lappe
504 - Lt Müller, Albert
505 - Lt Hennecke
506 - Lt Theunissen
507 - Lt Bürmann
525 - Lt Bitter, Friedrich Wilhelm
526 - OLt Skopnik
527 - Lt Vietze
541 - Lt Block, wounded, replaced by Vizefeldwebel Weiss
542 - Lt Stein, KIA
560 - Lt Volckheim, Ernst
561 - Lt Biltz, Wilhelm
562 - Lt Bartens, Wolfgang
May 31st, 1918
504 - ?
525 - ?
528 - ?
529 - Lt Biltz, Wilhelm
563 - ?
June 1st, 1918
526 - OLt Skopnik
527 - Lt Bergemann
541 - Lt Philipp
560 - Lt Volckheim
562 - Lt Bartens
Marianne - Lt Korb
Moritz - Lt Fuchsbauer
Max - Lt Feuchter
Ännchen - Lt Burkhardt
Hedda - Lt Romkopf
Liesel - Lt Brandt
Trude - Lt Vietze
Lotte - Lt Riesenberg
Heinz - Lt Köhler
June 9th, 1918
503 - Lt Heiland
505 - Lt Melching
507 - Lt Lappe
541 - Lt Philip
543 - Lt Fritsch
560 - Lt Volckheim, after shell damage taken over by Lt Bergemann
562 - Lt Bartens, after Bartens' fatal wound taken over by Lt Volckheim
564 - Lt Theunissen
July 15th, 1918:
501 - Lt Bergemann
504 - Lt Goldmann
525 - Lt Müller, Albert
540 - Lt Vietze
541 - Vizefeldwebel Lommen
560 - Lt Wagner
563 - Lt Melching
From the Beute-Tanks I've (so far) only Abt.13
Wolf - Lt Fuchsbauer
Bob - Lt Ludwig
Bertha - Lt Korb
Kathi - Lt Werner
Kerlchen - Lt Kürzdörfer
August 30th/31st, 1918
501 - Lt Bergemann, replaced by VizeFw Ludwig
504 - Lt Kunze
525 - Lt Schück
528 - Lt v.Jamrowski
540 - Lt Wagner
541 - VizeFw Lommen
560 - Lt Volckheim
562 - Lt Asholt
563 - Lt Goldmann